Inventory_Presser_Admin_Options

class Inventory_Presser_Admin_Options {

	/**
	 * This plugin's option that holds all the settings.
	 *
	 * @var array
	 */
	private $option;
	const QUERY_VAR_MANAGE_VEHICLES = 'invp_manage_vehicles';

	/**
	 * Adds hooks
	 *
	 * @return void
	 */
	public function add_hooks() {
		add_action( 'admin_enqueue_scripts', array( $this, 'scripts_and_styles' ) );
		add_action( 'admin_init', array( $this, 'add_settings' ) );
		add_action( 'admin_menu', array( $this, 'add_options_page' ) );

		// Look for a query variable that triggers Delete All Vehicles.
		add_action( 'admin_init', array( $this, 'detect_manage_vehicles_query_var' ) );

		/**
		 * When the option is updated, check if the additional listings pages
		 * settings changed. If they have, flush permalinks.
		 */
		add_action( 'update_option_' . INVP::OPTION_NAME, array( $this, 'maybe_flush_permalinks' ), 10, 2 );
	}

	public function detect_manage_vehicles_query_var() {
		if ( 'GET' != $_SERVER['REQUEST_METHOD'] ) {
			return;
		}

		if ( empty( $_GET['_wpnonce'] ) || empty( $_GET[ self::QUERY_VAR_MANAGE_VEHICLES ] ) ) {
			return;
		}

		if ( ! wp_verify_nonce( $_GET['_wpnonce'], self::QUERY_VAR_MANAGE_VEHICLES ) ) {
			return;
		}

		$action = sanitize_text_field( $_GET[ self::QUERY_VAR_MANAGE_VEHICLES ] );
		switch ( $action ) {
			case 'delete_all_vehicles':
				INVP::delete_all_inventory();
				break;
			case 'load_sample_vehicles':
				INVP::load_sample_vehicles();
				break;
		}

		// Redirect to prevent duplicate actions on reloads.
		wp_safe_redirect( admin_url( 'edit.php?post_type=' . INVP::POST_TYPE . '&page=' . INVP::OPTION_PAGE ) );
		exit;
	}

	/**
	 * If the additional listing pages settings are changed, or the switch
	 * is on and the array of pages is different, flush rewrite rules
	 *
	 * @param  string $option
	 * @param  mixed  $old_value
	 * @param  mixed  $value
	 * @return void
	 */
	public function maybe_flush_permalinks( $old_value, $value ) {
		// Did the additional listings pages settings change?
		if ( ( ! isset( $old_value['additional_listings_pages'] ) && isset( $value['additional_listings_pages'] ) )
			|| ( isset( $old_value['additional_listings_pages'] ) && ! isset( $value['additional_listings_pages'] ) )
			|| ( isset( $old_value['additional_listings_pages'] ) && isset( $value['additional_listings_pages'] ) && $old_value['additional_listings_pages'] !== $value['additional_listings_pages'] )
		) {
			Inventory_Presser_Plugin::flush_rewrite( false );
		}
	}

	/**
	 * Registers JavaScript and CSS file that power the settings page.
	 *
	 * @return void
	 */
	public function scripts_and_styles() {
		$handle = 'invp_page_settings';
		$min    = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
		wp_register_script(
			$handle,
			plugins_url( "/js/page-settings${min}.js", INVP_PLUGIN_FILE_PATH ),
			array( 'jquery' ),
			INVP_PLUGIN_VERSION,
			true
		);
		wp_register_style(
			$handle,
			plugins_url( "/css/page-settings${min}.css", INVP_PLUGIN_FILE_PATH ),
			array(),
			INVP_PLUGIN_VERSION
		);
	}

	/**
	 * Adds an options page to the dashboard to hold all this plugin's settings.
	 *
	 * @return void
	 */
	public function add_options_page() {
		if ( post_type_exists( INVP::POST_TYPE ) ) {
			add_submenu_page(
				'edit.php?post_type=' . INVP::POST_TYPE,
				__( 'Options', 'inventory-presser' ), // page_title.
				__( 'Options', 'inventory-presser' ), // menu_title.
				'manage_options', // capability.
				INVP::OPTION_PAGE, // menu_slug.
				array( $this, 'options_page_content' ) // function.
			);
			return;
		}

		add_options_page(
			__( 'Inventory Presser', 'inventory-presser' ), // page_title.
			__( 'Inventory Presser', 'inventory-presser' ), // menu_title.
			'manage_options', // capability.
			INVP::OPTION_PAGE, // menu_slug.
			array( $this, 'options_page_content' ) // function.
		);
	}

	/**
	 * Registers sections and settings using the Settings API.
	 *
	 * @return void
	 */
	public function add_settings() {
		register_setting(
			INVP::option_group(), // option_group.
			INVP::OPTION_NAME, // option_name.
			array( $this, 'sanitize_options' ) // sanitize_callback.
		);

		/**
		 * SECTION General
		 */
		$section = 'dealership_options_setting_section';
		add_settings_section(
			$section, // id.
			__( 'General', 'inventory-presser' ), // title.
			'__return_empty_string', // callback.
			INVP::option_page() // page.
		);

		// Manage.
		if ( current_user_can( 'delete_posts' ) ) {
			add_settings_field(
				'manage', // id.
				__( 'Manage Inventory', 'inventory-presser' ), // title.
				array( $this, 'callback_manage' ), // callback.
				INVP::option_page(), // page.
				$section // section.
			);
		}

		// [x] Skip trash when deleting vehicles and delete permanently
		add_settings_field(
			'skip_trash', // id.
			__( 'Skip Trash', 'inventory-presser' ), // title.
			array( $this, 'callback_skip_trash' ), // callback.
			INVP::option_page(), // page.
			$section // section.
		);

		// [x] Show all taxonomies under Vehicles menu in Dashboard
		add_settings_field(
			'show_all_taxonomies', // id.
			__( 'Show All Taxonomies', 'inventory-presser' ), // title.
			array( $this, 'callback_show_all_taxonomies' ), // callback.
			INVP::option_page(), // page.
			$section // section.
		);

		// MapBox Public Token [____________].
		add_settings_field(
			'mapbox_public_token', // id.
			__( 'MapBox Public Token', 'inventory-presser' ), // title.
			array( $this, 'callback_mapbox_public_token' ), // callback.
			INVP::option_page(), // page.
			$section // section.
		);

		add_settings_field(
			'use_arranger_gallery', // id.
			__( 'Rearrange Photos Block', 'inventory-presser' ), // title.
			array( $this, 'callback_use_arranger_gallery' ), // callback.
			INVP::option_page(), // page.
			$section // section.
		);

		/**
		 * SECTION Listings
		 */
		add_settings_section(
			'dealership_options_section_listings', // id.
			__( 'Listings', 'inventory-presser' ), // title.
			'__return_empty_string', // callback.
			INVP::option_page() // page.
		);

		// Sort vehicles by [Field] in [Ascending] order.
		add_settings_field(
			'sort_vehicles_by', // id.
			__( 'Sort Vehicles By', 'inventory-presser' ), // title.
			array( $this, 'callback_sort_vehicles_by' ), // callback.
			INVP::option_page(), // page.
			'dealership_options_section_listings' // section.
		);

		// Price Display.
		add_settings_field(
			'price_display', // id.
			__( 'Price Display', 'inventory-presser' ), // title.
			array( $this, 'callback_price_display' ), // callback.
			INVP::option_page(), // page.
			'dealership_options_section_listings' // section.
		);

		// [x] Include sold vehicles
		add_settings_field(
			'include_sold_vehicles', // id.
			__( 'Sold Vehicles', 'inventory-presser' ), // title.
			array( $this, 'callback_include_sold_vehicles' ), // callback.
			INVP::option_page(), // page.
			'dealership_options_section_listings' // section.
		);

		/**
		 * Create an additional inventory archive at pmgautosales.com/[cash-deals]
		 * that contains vehicles that have a value for field [Down Payment]
		 */
		add_settings_field(
			'additional_listings_page', // id.
			__( 'Listings Pages', 'inventory-presser' ), // title.
			array( $this, 'callback_additional_listings_page' ), // callback.
			INVP::option_page(), // page.
			'dealership_options_section_listings' // section.
		);

		/**
		 * SECTION Carfax
		 */
		add_settings_section(
			'dealership_options_section_carfax', // id.
			__( 'Carfax', 'inventory-presser' ), // title.
			'__return_empty_string', // callback.
			INVP::option_page() // page.
		);

		// [x] Display Carfax buttons near vehicles that link to free Carfax reports
		add_settings_field(
			'use_carfax', // id.
			__( 'Enable Carfax', 'inventory-presser' ), // title.
			array( $this, 'callback_use_carfax' ), // callback.
			INVP::option_page(), // page.
			'dealership_options_section_carfax' // section.
		);

		// [x] Use Carfax-provided, dynamic buttons that may also say things like "GOOD VALUE"
		add_settings_field(
			'use_carfax_provided_buttons', // id.
			__( 'Use Newest Buttons', 'inventory-presser' ), // title.
			array( $this, 'callback_use_carfax_provided_buttons' ), // callback.
			INVP::option_page(), // page.
			'dealership_options_section_carfax' // section.
		);
	}

	/**
	 * Outputs HTML that renders checkboxes.
	 *
	 * @param  string $setting_name   The name of the setting and control
	 * @param  string $checkbox_label The checkbox label that the user sees
	 * @return void
	 */
	protected function boolean_checkbox_setting_callback( $setting_name, $checkbox_label ) {
		printf(
			'<input type="checkbox" name="%1$s[%2$s]" id="%2$s" %3$s> <label for="%2$s">%4$s</label>',
			esc_attr( INVP::OPTION_NAME ),
			esc_attr( $setting_name ),
			isset( $this->option[ $setting_name ] ) ? checked( $this->option[ $setting_name ], true, false ) : '',
			esc_html( $checkbox_label )
		);
	}

	/**
	 * Outputs a table to manage additional inventory listing pages.
	 *
	 * Helps users create an additional inventory archive at
	 * example.com/[cash-deals] that contains vehicles that have a value for
	 * field [Down Payment].
	 *
	 * @return void
	 */
	public function callback_additional_listings_page() {
		?>
		<div id="additional_listings_pages_settings">
			<table class="wp-list-table widefat striped additional_listings_pages">
				<thead>
					<tr>
						<th><?php esc_html_e( 'Active', 'inventory-presser' ); ?></th>
						<th><?php esc_html_e( 'Title', 'inventory-presser' ); ?></th>
						<th><?php esc_html_e( 'URL path', 'inventory-presser' ); ?></th>
						<th><?php esc_html_e( 'Filter field', 'inventory-presser' ); ?></th>
						<th><?php esc_html_e( 'Operator', 'inventory-presser' ); ?></th>
						<th><?php esc_html_e( 'Value', 'inventory-presser' ); ?></th>
						<th></th>
					</tr>
				</thead>
				<tbody>
				<?php

				// output a row for each saved additional listing page + one blank.
				$additional_listings = Inventory_Presser_Additional_Listings_Pages::additional_listings_pages_array();
				$keys                = array(
					'url_path',
					'key',
					'operator',
					'value',
				);
				$page_count          = count( $additional_listings );
				for ( $a = 0; $a < $page_count; $a++ ) {
					foreach ( $keys as $key ) {
						if ( ! isset( $additional_listings[ $a ][ $key ] ) ) {
							$additional_listings[ $a ][ $key ] = '';
						}
					}

					?>
					<tr id="row_<?php echo esc_attr( $a ); ?>">
						<td class="active">
							<?php
							printf(
								'<input type="checkbox" id="additional_listings_pages_active_%1$s" name="%2$s[additional_listings_pages][%1$s][active]" %3$s />',
								esc_attr( $a ),
								esc_attr( INVP::OPTION_NAME ),
								checked( true, $additional_listings[ $a ]['active'] ?? true, false )
							);
							?>
						</td>
						<td>
							<?php
							// text box for page title.
							printf(
								'<input type="text" id="additional_listings_pages_title_%1$s" name="%2$s[additional_listings_pages][%1$s][title]" value="%3$s" />',
								esc_attr( $a ),
								esc_attr( INVP::OPTION_NAME ),
								esc_attr( $additional_listings[ $a ]['title'] ?? '' )
							);
							?>
							</td>
						<td>
							<?php
							// url path.
							printf(
								'%1$s/<input type="text" id="additional_listings_pages_slug_%2$s" name="%3$s[additional_listings_pages][%2$s][url_path]" class="additional_listings_pages_slug" value="%4$s" />',
								esc_url( site_url() ),
								esc_attr( $a ),
								esc_attr( INVP::OPTION_NAME ),
								esc_attr( $additional_listings[ $a ]['url_path'] ?? '' )
							);
							?>
							</td>
						<td>
							<?php
							// select list of vehicle fields.
							echo $this->html_select_vehicle_keys(
								array(
									'id'    => 'additional_listings_pages_key_' . $a,
									'name'  => INVP::OPTION_NAME . '[additional_listings_pages][' . $a . '][key]',
									'class' => 'filter-key',
								),
								$additional_listings[ $a ]['key'] ?? ''
							);
							?>
							</td>
						<td>
							<?php
							// select list of operators.
							echo $this->html_select_operator(
								array(
									'id'    => 'additional_listings_pages_operator_' . $a,
									'name'  => INVP::OPTION_NAME . '[additional_listings_pages][' . $a . '][operator]',
									'class' => 'operator',
								),
								$additional_listings[ $a ]['operator'] ?? ''
							);
							?>
							</td>
						<td>
							<?php
							// text box for comparison value.
							printf(
								'<input type="text" id="additional_listings_pages_value_%1$s" name="%2$s[additional_listings_pages][%1$s][value]" value="%3$s" />',
								esc_attr( $a ),
								esc_attr( INVP::OPTION_NAME ),
								esc_attr( $additional_listings[ $a ]['value'] ?? '' )
							);
							?>
							</td>
						<td>
							<a href="<?php echo esc_url( site_url( $additional_listings[ $a ]['url_path'] ?? '' ) ); ?>" class="button action" title="<?php esc_attr__( 'View this page', 'inventory-presser' ); ?>"><span class="dashicons dashicons-welcome-view-site"></span></a><button class="button action delete-button" id="delete_<?php echo esc_attr( $a ); ?>" title="<?php esc_attr__( 'Delete this page', 'inventory-presser' ); ?>"><span class="dashicons dashicons-trash"></span></button>
						</td>
					</tr>
					<?php

				}

				?>
				</tbody>
			</table>
			<button class="button action" id="add_additional_listings_page"><?php esc_html_e( 'Add Listings Page', 'inventory-presser' ); ?></button>
		</div>
		<?php
	}

	/**
	 * Outputs a checkbox control for the Include Sold Vehicles setting.
	 *
	 * @return void
	 */
	public function callback_include_sold_vehicles() {
		$this->boolean_checkbox_setting_callback(
			'include_sold_vehicles',
			__( 'Include sold vehicles in listings and search results', 'inventory-presser' )
		);
	}

	public function callback_manage() {
		// Load Sample Vehicles button.
		if ( current_user_can( 'edit_posts' ) ) {
			$url = add_query_arg(
				array(
					self::QUERY_VAR_MANAGE_VEHICLES => 'load_sample_vehicles',
					'_wpnonce'                      => wp_create_nonce( self::QUERY_VAR_MANAGE_VEHICLES ),
				),
				admin_url( 'edit.php?post_type=' . INVP::POST_TYPE . '&page=' . INVP::OPTION_PAGE )
			);
			printf(
				'<a class="button action" id="load_sample_vehicles" href="%s">%s</a> ',
				esc_url( $url ),
				esc_html__( 'Load Sample Vehicles', 'inventory-presser' )
			);
		}

		// Delete All Vehicles button.
		if ( current_user_can( 'delete_posts' ) ) {
			$url = add_query_arg(
				array(
					self::QUERY_VAR_MANAGE_VEHICLES => 'delete_all_vehicles',
					'_wpnonce'                      => wp_create_nonce( self::QUERY_VAR_MANAGE_VEHICLES ),
				),
				admin_url( 'edit.php?post_type=' . INVP::POST_TYPE . '&page=' . INVP::OPTION_PAGE )
			);
			printf(
				'<a class="button action" id="delete_all_vehicles" href="%s">%s</a>',
				esc_url( $url ),
				esc_html__( 'Delete All Vehicles', 'inventory-presser' )
			);
		}

		if ( current_user_can( 'edit_posts' ) || current_user_can( 'delete_posts' ) ) {
			printf(
				'<p class="description">%s</p>',
				esc_html__( 'These features may be impacted by time and memory limits set by your web host.', 'inventory-presser' )
			);
		}
	}

	/**
	 * Outputs a text box control for the MapBox Public Token setting
	 *
	 * @return void
	 */
	public function callback_mapbox_public_token() {
		printf(
			'<p><input type="text" name="%1$s" class="regular-text code" id="%1$s" value="%2$s" /></p><p class="description">%3$s <a href="%4$s">%5$s</a> %6$s</p>',
			'inventory_presser[mapbox_public_token]',
			esc_attr( isset( $this->option['mapbox_public_token'] ) ? $this->option['mapbox_public_token'] : '' ),
			esc_html__( 'Obtain a key at', 'inventory-presser' ),
			'https://mapbox.com/',
			'mapbox.com',
			esc_html__( 'to use the Map widget.', 'inventory-presser' )
		);
	}


	/**
	 * Outputs a dropdown select control for the Price Display setting
	 *
	 * @return void
	 */
	public function callback_price_display() {
		$separator             = apply_filters( 'invp_price_display_separator', ' / ', $this->option['price_display'] ?? '', 0 );
		$price_display_options = apply_filters(
			'invp_price_display_options',
			array(
				'default'          => '${Price}',
				'msrp'             => '${MSRP}',
				'full_or_down'     => '${Price}' . $separator . '${Down Payment} Down',
				'down_only'        => '${Down Payment} Down',
				'was_now_discount' => sprintf(
					'%s ${MSRP} %s ${Price} %s ${MSRP}-{Price}',
					apply_filters( 'invp_price_was_now_discount_retail', __( 'Retail', 'inventory-presser' ) ),
					apply_filters( 'invp_price_was_now_discount_now', __( 'Now', 'inventory-presser' ) ),
					apply_filters( 'invp_price_was_now_discount_save', __( 'You Save', 'inventory-presser' ) )
				),
				'payment_only'     => '${Payment} {Frequency}',
				'down_and_payment' => '${Down payment}' . $separator . '${Payment} {Frequency}',
				'call_for_price'   => __( 'Call For Price', 'inventory-presser' ),
			)
		);

		$selected_val = null;
		if ( isset( $this->option['price_display'] ) ) {
			$selected_val = $this->option['price_display'];
		}

		printf(
			'<select name="%s[price_display]" id="price_display">',
			esc_attr( INVP::OPTION_NAME )
		);
		foreach ( $price_display_options as $val => $name ) {
			printf(
				'<option value="%s"%s>%s</option>',
				esc_attr( $val ),
				selected( $val, $selected_val, false ),
				esc_html( $name )
			);
		}
		printf(
			'</select><p class="description" id="%s[price_display]-description">&quot;%s&quot; %s.</p>',
			esc_attr( INVP::OPTION_NAME ),
			esc_html__( 'Call for Price', 'inventory-presser' ),
			esc_html__( 'will display for any price that is zero', 'inventory-presser' )
		);
	}

	/**
	 * Output the controls that create the Show all Taxonomies setting.
	 *
	 * @return void
	 */
	public function callback_show_all_taxonomies() {
		$this->boolean_checkbox_setting_callback(
			'show_all_taxonomies',
			__( 'Show all taxonomies under Vehicles menu in Dashboard', 'inventory-presser' )
		);

		$links         = array();
		$taxonomy_data = Inventory_Presser_Taxonomies::taxonomy_data();
		for ( $i = 0; $i < sizeof( $taxonomy_data ); $i++ ) {
			if ( empty( $taxonomy_data[ $i ]['args']['query_var'] )
				|| empty( $taxonomy_data[ $i ]['args']['label'] ) ) {
				continue;
			}
			$links[] = '<a href="' . admin_url(
				sprintf(
					'edit-tags.php?taxonomy=%s&post_type=%s',
					str_replace( '-', '_', $taxonomy_data[ $i ]['args']['query_var'] ),
					INVP::POST_TYPE
				)
			) . '">' . $taxonomy_data[ $i ]['args']['label'] . '</a>';
		}

		printf(
			'<p class="description">%s %s</p>',
			__( 'Show or hide these menu items:', 'inventory-presser' ),
			implode( ', ', $links )
		);
	}

	/**
	 * Output the controls that create the Skip Trash setting.
	 *
	 * @return void
	 */
	public function callback_skip_trash() {
		$this->boolean_checkbox_setting_callback(
			'skip_trash',
			__( 'Skip trash when deleting vehicles and delete permanently', 'inventory-presser' )
		);
	}

	/**
	 * change_sort_by_option_values
	 *
	 * @param  mixed $value
	 * @return void
	 */
	public function change_sort_by_option_values( $value ) {
		if ( 'date_entered' === $value ) {
			return 'post_date';
		}
		if ( 'last_modified' === $value ) {
			return 'post_modified';
		}
		return $value;
	}

	/**
	 * Output the controls that create the default vehicle sort setting.
	 *
	 * @return void
	 */
	public function callback_sort_vehicles_by() {
		// use these default values if we have none
		if ( ! isset( $this->option['sort_vehicles_by'] ) ) {
			$this->option['sort_vehicles_by'] = 'make';
		}
		if ( ! isset( $this->option['sort_vehicles_order'] ) ) {
			$this->option['sort_vehicles_order'] = 'ASC';
		}

		add_filter( 'invp_html_select_vehicle_keys_value', array( $this, 'change_sort_by_option_values' ) );

		$select = $this->html_select_vehicle_keys(
			array(
				'name' => INVP::OPTION_NAME . '[sort_vehicles_by]',
				'id'   => 'sort_vehicles_by',
			),
			$this->option['sort_vehicles_by']
		);

		remove_filter( 'invp_html_select_vehicle_keys_value', array( $this, 'change_sort_by_option_values' ) );

		printf(
			'%s %s <select name="%s[sort_vehicles_order]" id="sort_vehicles_order">',
			$select,
			esc_html__( 'in', 'inventory-presser' ),
			esc_attr( INVP::OPTION_NAME )
		);

		foreach ( array(
			'ascending'  => 'ASC',
			'descending' => 'DESC',
		) as $direction => $abbr ) {
			echo '<option value="' . esc_attr( $abbr ) . '"';
			if ( isset( $this->option['sort_vehicles_order'] ) ) {
				selected( $this->option['sort_vehicles_order'], $abbr );
			}
			echo '>' . esc_html( $direction ) . '</option>';
		}
		echo '</select> ' . esc_html__( 'order', 'inventory-presser' );
	}

	/**
	 * Outputs a checkbox and label to enable the photo arranger Gallery Block
	 * feature.
	 *
	 * @return void
	 */
	public function callback_use_arranger_gallery() {
		$setting_name = 'use_arranger_gallery';
		$options      = INVP::settings();
		printf(
			'<p><input type="checkbox" name="%s[%s]" id="%s" %s> <label for="%s">%s</label></p>',
			esc_attr( INVP::OPTION_NAME ),
			esc_attr( $setting_name ),
			esc_attr( $setting_name ),
			isset( $options[ $setting_name ] ) ? checked( $options[ $setting_name ], true, false ) : '',
			esc_attr( $setting_name ),
			esc_html__( 'Add a Gallery Block to new vehicle posts to manage photo uploads and their order', 'inventory-presser' )
		);
	}

	/**
	 * Output the controls that create the Display Carfax Buttons setting.
	 *
	 * @return void
	 */
	public function callback_use_carfax() {
		$this->boolean_checkbox_setting_callback(
			'use_carfax',
			__( 'Display Carfax buttons near vehicles that link to free Carfax reports', 'inventory-presser' )
		);
	}

	/**
	 * Output the controls that create the Use Carfax-provided Buttons setting.
	 *
	 * @return void
	 */
	public function callback_use_carfax_provided_buttons() {
		$this->boolean_checkbox_setting_callback(
			'use_carfax_provided_buttons',
			__( 'Use Carfax-provided, dynamic buttons that may also say things like "GOOD VALUE"', 'inventory-presser' )
		);
	}

	/**
	 * Creates a dropdown select that contains logical operators.
	 *
	 * @param  array  $attributes
	 * @param  string $selected_value
	 * @return string
	 */
	private function html_select_operator( $attributes = null, $selected_value = null ) {
		$keys = array(
			__( 'exists', 'inventory-presser' ),
			__( 'does not exist', 'inventory-presser' ),
			__( 'greater than', 'inventory-presser' ),
			__( 'less than', 'inventory-presser' ),
			__( 'equal to', 'inventory-presser' ),
			__( 'not equal to', 'inventory-presser' ),
			__( 'contains', 'inventory-presser' ),
		);

		$options = '';
		foreach ( $keys as $key ) {
			$slug     = str_replace( ' ', '_', $key );
			$options .= sprintf(
				'<option value="%s"%s>%s</option>',
				$slug,
				selected( $selected_value, $slug, false ),
				$key
			);
		}

		$attribute_string = '';
		if ( ! empty( $attributes ) ) {
			$attribute_string = ' ' . str_replace( '=', '="', http_build_query( $attributes, '', '" ', PHP_QUERY_RFC3986 ) ) . '"';
		}

		return sprintf(
			'<select%s>%s</select>',
			urldecode( $attribute_string ),
			$options
		);
	}

	/**
	 * Get a list of all the post meta keys in our CPT. Let the user choose one
	 * as a default sort.
	 *
	 * @param  array  $attributes
	 * @param  string $selected_value
	 * @return string
	 */
	private function html_select_vehicle_keys( $attributes = null, $selected_value = null ) {
		$options = '<option value="">' . esc_html__( 'No filter', 'inventory-presser' ) . '</option>';
		foreach ( INVP::keys( false ) as $key ) {
			$meta_key = apply_filters( 'invp_prefix_meta_key', $key );

			// Skip hidden post meta keys.
			if ( '_' === $meta_key[0] ) {
				continue;
			}

			$value = apply_filters( 'invp_html_select_vehicle_keys_value', $key );

			$options .= sprintf(
				'<option value="%s"%s>%s</option>',
				$value,
				selected( $selected_value, $value, false ),
				str_replace( '_', ' ', ucfirst( $key ) )
			);
		}

		$attribute_string = '';
		if ( ! empty( $attributes ) ) {
			$attribute_string = ' ' . str_replace( '=', '="', http_build_query( $attributes, '', '" ', PHP_QUERY_RFC3986 ) ) . '"';
		}

		return sprintf(
			'<select%s>%s</select>',
			urldecode( $attribute_string ),
			$options
		);
	}

	/**
	 * Outputs the settings page HTML content
	 *
	 * @return void
	 */
	public function options_page_content() {
		wp_enqueue_script( 'invp_page_settings' );
		wp_enqueue_style( 'invp_page_settings' );

		$this->option = INVP::settings();

		?>
		<div class="wrap">
			<h2><?php esc_html_e( 'Inventory Presser Settings', 'inventory-presser' ); ?></h2>
		<?php
		settings_errors();

		?>
		<form method="post" action="options.php">
		<?php
		settings_fields( INVP::option_group() );
		do_settings_sections( INVP::option_page() );
		submit_button();

		?>
		</form>
		</div>
		<?php
	}

	/**
	 * Santitizes the user input into the options inputs before they are saved.
	 *
	 * @param  array $input Array of submitted settings page values.
	 * @return array
	 */
	public function sanitize_options( $input ) {
		$sanitary_values = array();

		$boolean_settings = array(
			'include_sold_vehicles',
			'show_all_taxonomies',
			'skip_trash',
			'use_arranger_gallery',
			'use_carfax',
			'use_carfax_provided_buttons',
		);
		foreach ( $boolean_settings as $b ) {
			$sanitary_values[ $b ] = isset( $input[ $b ] );
		}

		/**
		 * Backwards compatibility. No s. Will arrive when 14.6.0 and
		 * older-saved settings are saved on newer versions.
		 */
		if ( isset( $input['additional_listings_page'] ) ) {
			$sanitary_values['additional_listings_page'] = filter_var( $input['additional_listings_page'], FILTER_VALIDATE_BOOLEAN );
		}

		if ( isset( $input['price_display'] ) ) {
			$sanitary_values['price_display'] = $input['price_display'];
		}

		if ( isset( $input['mapbox_public_token'] ) ) {
			$sanitary_values['mapbox_public_token'] = $input['mapbox_public_token'];
		}

		if ( isset( $input['sort_vehicles_by'] ) ) {
			$sanitary_values['sort_vehicles_by'] = $input['sort_vehicles_by'];
		}

		if ( isset( $input['sort_vehicles_order'] ) ) {
			$sanitary_values['sort_vehicles_order'] = $input['sort_vehicles_order'];
		}

		if ( ! empty( $input['additional_listings_pages'] )
			&& is_array( $input['additional_listings_pages'] ) ) {
			/**
			 * array_values() re-indexes the array starting at zero in case the
			 * first rule was deleted and index 0 doesn't exist.
			 */
			$sanitary_values['additional_listings_pages'] = array_values( $input['additional_listings_pages'] );
			/**
			 * This feature doesn't work when two rules have the same URL path.
			 * Drop any duplicates. Also reject any invalid rules.
			 */
			$url_paths    = array();
			$unique_rules = array();
			foreach ( $sanitary_values['additional_listings_pages'] as $additional_listing ) {
				// Is this even a valid rule?
				if ( ! Inventory_Presser_Additional_Listings_Pages::is_valid_rule( $additional_listing ) ) {
					// No.
					continue;
				}

				// Ignore the operator and comparison value if there is no key.
				if ( '' === $additional_listing['key'] ) {
					$additional_listing['operator'] = '';
					$additional_listing['value']    = '';
				}

				/**
				 * Convert the active toggle to a real boolean. If a pre-14.6.0
				 * setting value is still set, this is where we convert all
				 * additional listings pages to active.
				 */
				$additional_listing['active'] = isset( $additional_listing['active'] )
					|| isset( $sanitary_values['additional_listings_page'] ); // No s.

				if ( in_array( $additional_listing['url_path'], $url_paths, true ) ) {
					// sorry!
					continue;
				}
				$unique_rules[] = $additional_listing;
				$url_paths[]    = $additional_listing['url_path'];
			}
			$sanitary_values['additional_listings_pages'] = $unique_rules;
		}

		return apply_filters( 'invp_options_page_sanitized_values', $sanitary_values, $input );
	}
}